make sure your cloner is clean i spray with the stuff alcohol and wash good.I use tap water no ph in 16 site cloner i use 15-30ml pg (the stuff homemade clear rez pool shock(calcium hypochlorite) with water mix 1 gram per gallon of water). use that mixture 15-30ml pg.I put 1-3 cuts per puck i use KLN 1ml in 2g cloner. cycle timer 15on 15 off. Always root in 7-9 days. if the water look funny or smell stink change the water and throw some stuff inside.